dorsal/arxiv
View SchemaElectromagnetic Dissociation as a Tool for Nuclear Structure and Astrophysics
| Authors | Gerhard Baur, Kai Hencken, Dirk Trautmann |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0304041 |
| URL | https://arxiv.org/abs/nucl-th/0304041 |
| DOI | 10.1016/S0146-6410(03)90006-8 |
| Journal | Prog.Part.Nucl.Phys.51:487-564,2003 |
Abstract
Coulomb dissociation is an especially simple and important reaction mechanism. Since the perturbation due to the electric field of the (target) nucleus is exactly known, firm conclusions can be drawn from such measurements. Electromagnetic matrixelements and astrophysical S-factors for radiative capture processes can be extracted from experiments. We describe the basic elements of the theory of nonrelativistic and relativistic electromagnetic excitation with heavy ions. This is contrasted to electromagnetic excitation with leptons (electrons), with their small electric charge and the absence of strong interactions. We discuss various approaches to the study of higher order electromagnetic effects and how these effects depend on the basic parameters of the experiment. The dissociation of neutron halo nuclei is studied in a zero range model using analytical methods. We also review ways how to treat nuclear interactions, show their characteristics and how to avoid them (as far as possible). We review the experimental results from a theoretical point of view. Of special interest for nuclear structure physics is the appearence of low lying electric dipole strength in neutron rich nuclei. Applications of Coulomb dissociation to some selected radiative capture reactions relevant for nuclear astrophysics are discussed. The Coulomb dissociation of 8B is relevant for the solar neutrino problem. The potential of the method especially for future investigations of (medium) heavy exotic nuclei for nuclear structure and astrophysics is explored. We conclude that the Coulomb dissociation mechanism is theoretically well understood, the potential difficulties are identified and can be taken care of. Many interesting experiments have been done in this field and many more are expected in the future.
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"abstract": "Coulomb dissociation is an especially simple and important reaction\nmechanism. Since the perturbation due to the electric field of the (target)\nnucleus is exactly known, firm conclusions can be drawn from such measurements.\nElectromagnetic matrixelements and astrophysical S-factors for radiative\ncapture processes can be extracted from experiments. We describe the basic\nelements of the theory of nonrelativistic and relativistic electromagnetic\nexcitation with heavy ions. This is contrasted to electromagnetic excitation\nwith leptons (electrons), with their small electric charge and the absence of\nstrong interactions. We discuss various approaches to the study of higher order\nelectromagnetic effects and how these effects depend on the basic parameters of\nthe experiment. The dissociation of neutron halo nuclei is studied in a zero\nrange model using analytical methods. We also review ways how to treat nuclear\ninteractions, show their characteristics and how to avoid them (as far as\npossible). We review the experimental results from a theoretical point of view.\nOf special interest for nuclear structure physics is the appearence of low\nlying electric dipole strength in neutron rich nuclei. Applications of Coulomb\ndissociation to some selected radiative capture reactions relevant for nuclear\nastrophysics are discussed. The Coulomb dissociation of 8B is relevant for the\nsolar neutrino problem. The potential of the method especially for future\ninvestigations of (medium) heavy exotic nuclei for nuclear structure and\nastrophysics is explored. We conclude that the Coulomb dissociation mechanism\nis theoretically well understood, the potential difficulties are identified and\ncan be taken care of. Many interesting experiments have been done in this field\nand many more are expected in the future.",
"arxiv_id": "nucl-th/0304041",
"authors": [
"Gerhard Baur",
"Kai Hencken",
"Dirk Trautmann"
],
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"doi": "10.1016/S0146-6410(03)90006-8",
"journal_ref": "Prog.Part.Nucl.Phys.51:487-564,2003",
"title": "Electromagnetic Dissociation as a Tool for Nuclear Structure and Astrophysics",
"url": "https://arxiv.org/abs/nucl-th/0304041"
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